Give an example of a species and how natural selection affected it over time. Focus on one specific trait of that species.

Natural selection has been observed on many species, though one of the most prevalent as observed by Charles Darwin was in finches. Scientists found that the birds were all similar to a single type of finch found on mainland South America, suggesting that these mainland finches had originally colonized the islands in the Galapagos. However, these finches were slightly different from the original mainland species as well as from each other. They showed distinct variation in beak size, beak shape, and claw size. The differences were attributed to the differing food sources available on the various islands in the Galapagos. Long, thin beaks were suited for catching and eating insects whereas others had large, strong beaks suitable for cracking nuts open. Drawin concluded that finches evolved overtime through natural selection which determined their adaptations to various food sources. Variations which gave any individual a competitive advantage made them more likely to survive and therefore reproduce, as seen in the finches who survived on a certain food source with their suited beak, and could continue their the passing of their genes through generations.

1. when the tempature rises,your sweat glands and then springs into action making perspiration. some sweat evaporates with your skin taling heat with it.2.some of the blood pumped by the heart travels by your lungs to get rid of carbon dioxide and pick up oxygen.3.saliva produces by, you drinking water which saliva is 98% of. when mucus builds up in your body it also creates saliva as well as, antibacterial compunds.4.when the core body tempature drops, the shivering reflex is triggered to maintain homeostasis. for example: when you get out the pool you start to shiver because it is cold.

Dear where is the map?